Features: 1, long life 0 2 with a good corrosion resistance of lead-calcium alloy grid at ambient temperature 25 ℃, the normal float life of up to 10 years??. ? 0? 22, sealing security, simple installation? 0? No flow of electro-hydraulic 2 batteries, battery vertical, lateral installation can be, without the risk of fluid leakage of electricity, but also in the normal process of charging the battery will not produce mist. Therefore, the battery can be installed in an office or equipment room, without separate special battery housing construction, reduce project cost. ? 0? 23, free water, easy maintenance? 0? 2 is specially designed to overcome the battery during the charging process of electrolysis of water loss phenomenon, the battery in the course of almost no change in the volume and the proportion of electro-hydraulic, so the battery during the life of completely without water and simple maintenance. ? 0? 24, a good high power discharge performance? 0? 2 with a high internal resistance is small plates and glass partitions, and the assembly is tight, so that the battery internal resistance is minimal. In the temperature range of -40 ℃ ~ 60 ℃ large current discharge, the output power can be higher than conventional batteries about 15%. ? 0? 25, easy to install? 0? 2 battery is fully charged at the factory, you can get the battery installed and put into use. Applications:?? 0 2⑴ telephone exchange office automation system ⑺ 0 2⑵ electrical equipment, medical equipment and instruments, radio communication systems ⑻ 0 2⑶ ⑼ computer uninterruptible power supply emergency lighting 0 2⑷ power transmission station, switch control, and?????? emergency lighting ⑽ portable appliances and mining system? 0? 2⑸ fire, security and alarm monitoring ⑾ traffic and beacon lights? 0? 2⑹ automotive starter batteries and lead-acid batteries in the role of marine telecommunications systems and problems of lead-acid battery is the communication power system is an important component of the DC power supply system, which serves as a DC power supply backup power, primarily responsible in the case of sudden interruption of electricity continue to provide safe, stable and reliable power protection for the communications load, ensure switching, transmission and other communications normal operation of equipment. Therefore, lead-acid batteries in the discharge process can provide meaning to the actual capacity of the load to ensure the smooth flow of communication is very important. ? 0? 2 However, lead-acid batteries after a period of use, are often easy because the active material shedding, grid corrosion or plate deformation, curing and other factors, leaving capacity gradually reduced until failure. Find out behind the battery, and be dealt with in order to eliminate hidden dangers, that the majority of lead-acid battery maintenance staff. Over the past several decades we have been using anti-acid proof lead-acid lead-acid batteries, and accumulated some experience. But because this battery maintenance methods cumbersome, has been having a free water, flexible installation, small footprint and does not form mist of VRLA lead-acid battery (VRLA) replaced. ? 0? 2 in recent years due VRLA lead-acid batteries are widely used in the domestic production of VRLA manufacturers more and more, the production scale and skill levels, a lot of problems, VRLA early 1990s domestic use battery has a lot of new problems not previously encountered, but because it is a new technology, because some fault has not been fully grasp, only to establish effective management method on maintenance, as to avoid significant risks. Advantages: 1, good impact resistance: the battery is fully charged state natural height from 20cm down to 1cm thick hardwood board 3 times. No leakage, no cell expansion and cracking, open circuit voltage is normal. ? 0 22, good resistance to shock:? Fully charged battery completely fixed to 4mm amplitude, 16.7Hz vibration frequency of 1 hour, no leakage, no cell expansion and cracking, open circuit voltage is normal. ? 0 23, resistance to high current:? Fully charged battery 2CA discharge for 5 minutes or 10CA discharge for 5 seconds. No conductive part of the fuse, without the appearance of deformation. ?? 0 24, good safety performance: No electrolyte leakage under normal use, no cell expansion and rupture. ?? 0 25, resistance to over-discharge: 25 degrees Celsius, the battery is fully charged state of constant resistance discharge 3 weeks (resistance value is equivalent to the battery discharge requirements 1CA resistance) to restore more than 75% capacity. ? 0 26, the discharge performance:? Stable discharge voltage, discharge platform gently. ?? 0 27, and good resistance to overcharge: 25 degrees Celsius, fully charged battery 0.1CA charge for 48 hours, no leakage, no cell expansion and cracking, open circuit voltage is normal, the capacity retention rate of over 95%